Home / 319,895.40-480,015.90-132,925.80

Finding the Fourth Proportional to 319,895.40, 480,015.90 and 132,925.80

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Solution

The fourth proportional to 319,895.40, 480,015.90 and 132,925.80 is: 199,460.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,895.40 : 480,015.90 = 132,925.80 : x
  2. Step 2: Convert to fraction form
    319,895.40/480,015.90 = 132,925.80/x
  3. Step 3: Cross multiply
    319,895.40x = 480,015.90 × 132,925.80
  4. Step 4: Simplify right side
    319,895.40x = 63,806,497,520.22
  5. Step 5: Solve for x
    x = 63,806,497,520.22/319,895.40
  6. Step 6: Final answer
    x = 199,460.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.